Across
1
Large slow-moving mass of ice
4
Region surrounding the North Pole
7
Narrow sea inlet between cliffs
8
Low area between mountains
9
Steep rock face at edge of land
Down
2
Largest ocean on Earth
3
Piece of land jutting into the sea
5
Area where water covers the soil
6
Ridge of rock or coral near the surface
10
Half of the Earth
11
Imaginary line around the middle of Earth